Alto American 12 Operator's Manual page 15

Leveling
If the sanding drum is out of adjustment, follow this
procedure:
1. Remove the belt cover.
2. Loosen the eccentric lock screw. Using the 7/16"
wrench, turn the eccentric lock screw (1) counter-
clockwise. See figure 7.
3. To raise or lower the drum, turn the eccentric (2).
See figure 7.
4. Tighten the eccentric lock screw. To tighten the
eccentric lock screw, turn the screw clockwise.
5. Install the belt cover.
How to Lubricate the Wheel Pivots
NOTE: The wheel pivots must be lubricated after
every 25 hours of use.
To lubricate the wheel pivots, follow this procedure:
1. Put the machine on its side.
2. Lubricate the pivots. The pivots are behind the
truck wheels. See figure 8.
3. Put the machine on its wheels.
Operating Control
To increase the travel or extend the reach on the grip
control follow this procedure:
1. Loosen the locknut on the control rod.
See figure 9.
2. Screw the control rod adjuster in until the desired
reach is found.
3. Tighten the locknut.
To decrease the travel or reduce the reach on the
grip control follow this procedure:
1. Loosen the locknut on the control rod.
See figure 9.
2. Screw the control rod adjuster out until desired
reach is found.
3. Tighten the locknut.
AMERICAN SANDERS TECHNOLOGY -American 12 Floor Sander Operator's Manual
Figure 7
Figure 8
Figure 9
Page 15